Answered: The beam of light from a laser on a…

The beam of light from a laser on a rotating turntable casts into space. At some distance, the beam moves across space faster than c. Why does this not contradict relativity?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter5: Relativity

Section: Chapter Questions

Problem 47P: Two planets are on a collision course, heading directly toward each other at 0.250c. A spaceship...

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Concept explainers

Frame of reference

In physics, a frame of reference is a coordinate system used to specify either the position or the orientation or velocity of a body. The origin of the coordinate acts as a reference point for measuring the position or relative motion of a body. The coordinate system can be a cartesian coordinate, cylindrical coordinate, or a polar coordinate.

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The beam of light from a laser on a rotating turntable casts into space. At some distance, the beam moves across space faster than c. Why does this not contradict relativity?

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